Verquin is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. An ex-coalmining town, Verquin is situated …Verquin is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. An ex-coalmining town, Verquin is situated some 3 miles south of Béthune centre and 24 miles southwest of Lille, at the junction of the D941, D937 and D72 roads. The A26 autoroute passes through the middle of the commune.